Last Class Protein Protein Carbohydrate Carbohydrate Lipid Lipid Nucleic acid Nucleic acid.

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Presentation transcript:

Last Class Protein Protein Carbohydrate Carbohydrate Lipid Lipid Nucleic acid Nucleic acid

DNA What is it?

DNA is an abbreviation for Deoxyribonucleic Acid is an abbreviation for Deoxyribonucleic Acid is the polymeric molecule whose chemical sequence determines individual hereditary characteristics is the polymeric molecule whose chemical sequence determines individual hereditary characteristics

What makes up DNA? DNA PhosphateSugar Nitrogen Base

What makes up DNA? Phosphates Deoxyribose sugar Nitrogen bases

DNA and RNA Structures

Creation of DNA strands Hydrogen Bonding Between Base Pairs (A to T and G to C)

DNA is like a ladder

DNA determines characteristics  The DNA bases (A, T, C, and G) make a code of letters  These letters make “words” which are called genes  These “words” make “sentences” called the genetic code  Our cells “read” these “sentences” and perform special functions

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